McAllister, 26, has split the season between Cleveland and Columbus. He began the year in the Cleveland rotation and went 3-4 with a 5.89 ERA in 10 starts before going on the 15-day disabled list on May 22 with lower back inflammation. He was optioned to Columbus on June 20 and has gone 5-0 with a 2.23 ERA in six starts with the Clippers.

Pestano is 0-1 with a 5.00 ERA in nine innings in 13 appearances with Cleveland this season.